Here are your answers! No Cheating...

Q1: a. 37.68
b. 56.52
c. 94.2
Q2: a.185.26
b.100.48
c. 78.5
Q3: a.i
b.ii
c.iii

How many did you get right? I hope you did well! If you didn't or you just want to revise some more, maybe do questions from your maths Homework Book on Chapter 6.

Hope it helped and good luck in your exams!